001package ca.uhn.fhir.util;
002
003/*
004 * #%L
005 * HAPI FHIR - Core Library
006 * %%
007 * Copyright (C) 2014 - 2021 Smile CDR, Inc.
008 * %%
009 * Licensed under the Apache License, Version 2.0 (the "License");
010 * you may not use this file except in compliance with the License.
011 * You may obtain a copy of the License at
012 *
013 * http://www.apache.org/licenses/LICENSE-2.0
014 *
015 * Unless required by applicable law or agreed to in writing, software
016 * distributed under the License is distributed on an "AS IS" BASIS,
017 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
018 * See the License for the specific language governing permissions and
019 * limitations under the License.
020 * #L%
021 */
022
023import java.util.List;
024
025import org.hl7.fhir.instance.model.api.IBase;
026import org.hl7.fhir.instance.model.api.IBaseResource;
027
028import ca.uhn.fhir.context.BaseRuntimeChildDefinition;
029import ca.uhn.fhir.context.BaseRuntimeElementDefinition;
030
031/**
032 * @see FhirTerser#visit(IBaseResource, IModelVisitor)
033 */
034public interface IModelVisitor {
035
036        /**
037         * @param theResource
038         *           The resource being visited (note that generally this will be the resource upon which
039         *           visit was originally called, but in the case of descending into contained resources this will be the contained resource instead)
040         * @param theElement
041         *           The element
042         * @param theChildDefinition
043         *           May be null if this is a root element
044         * @param theDefinition
045         */
046        void acceptElement(IBaseResource theResource, IBase theElement, List<String> thePathToElement, BaseRuntimeChildDefinition theChildDefinition, BaseRuntimeElementDefinition<?> theDefinition);
047
048}